CN207394845U - Combustor in slit-aperture type flame combustion apparatus - Google Patents
Combustor in slit-aperture type flame combustion apparatus Download PDFInfo
- Publication number
- CN207394845U CN207394845U CN201721340208.3U CN201721340208U CN207394845U CN 207394845 U CN207394845 U CN 207394845U CN 201721340208 U CN201721340208 U CN 201721340208U CN 207394845 U CN207394845 U CN 207394845U
- Authority
- CN
- China
- Prior art keywords
- combustor
- water chamber
- fire grate
- flame tube
- flame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
Combustor in slit-aperture type flame combustion apparatus, the combustor includes the upper water chamber and lower water chamber of setting symmetrical above and below, the fire grate being arranged side by side vertically up and down and steady flame tube are equipped between the upper water chamber and lower water chamber, the both sides of fire grate and steady flame tube are equipped with communicating pipe, the fire grate, steady flame tube, the inner hollow of communicating pipe and are connected with upper water chamber and lower water chamber.In the utility model, air mixture in fire grate and steady flame tube region by burning, and in combustion process, the cooling water in fire grate and steady flame tube can take away temperature, reduces flame temperature, effectively reduces the generation of nitrogen oxides.
Description
Technical field
The utility model belongs to hearth combustion technical field, and in particular to the burning in a kind of slit-aperture type flame combustion apparatus
Machine.
Background technology
Steam boiler refers to water to be heated to certain temperature and produces the Industrial Boiler of high-temperature steam, in the industrial production
It is widely used；Natural gas is generally used in existing steam boiler as burning gases.
The main component of natural gas is methane, with during air mixed combustion can because flame front temperature is excessively high and
Nitrogen oxides is generated, causes environmental pollution.According to the combustion mechanism of Jie Lidaoweiqi, when combustion flame sharp side temperature is higher than 1500
DEG C, generation nitrogen oxides is begun to, and flame front temperature often raises 100 DEG C, the aggregate velocity of nitrogen oxides is increased by 6 ~ 7
Times.Therefore control flame front temperature is to control the key factor of NO_x formation.
Have common recognition at present is that the discharge of nitrogen oxides is to form the major reason of atmospheric haze, acid rain, in global range
All in research high combustion efficiency and the low combustion technology of discharged nitrous oxides.Present gas fired-boiler is using more and more common but big
The burner of more boiler matchings uses diffusion type combustion system, and major advantage is：Flameholding, technology maturation, but there is combustion
Burn the defects of incomplete, discharged nitrous oxides are high.Therefore, people start research and develop full premix combustion technology, i.e., in advance by air with
Fuel in certain proportion uniformly mixes, and is sent into special burner combustion, and the burner is generally pylindrical, surface wrapped up in one layer it is resistance to
High-temperature metal fiber weaving cloth or ceramic fibre, flame burn on its surface.This full premix surface combustion system burning is more abundant,
The thermal efficiency is high.But there are Railway Projects：1st, flame holding is poor, and tempering deflagration phenomenon easily occurs；2nd, since woven fabric mesh is fine and closely woven,
Easily block；3rd, in the case where excess air factor is low, discharged nitrous oxides are higher.
The utility model is further studied the combustor in slit-aperture type flame combustion apparatus.
Utility model content
For above deficiency of the prior art, the utility model provides the combustion in a kind of slit-aperture type flame combustion apparatus
Burning machine, it is easy to use, flame front temperature can be effectively reduced, inhibits the production of nitrogen oxides, and flameholding.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals.
Combustor in slit-aperture type flame combustion apparatus, the combustor include the upper water chamber of setting symmetrical above and below and lower water
Room, is equipped with the fire grate that is arranged side by side vertically up and down and steady flame tube between the upper water chamber and lower water chamber, and the two of fire grate and steady flame tube
Side is equipped with communicating pipe, the fire grate, steady flame tube, the inner hollow of communicating pipe and is connected with upper water chamber and lower water chamber.
In the utility model, air mixture in fire grate and steady flame tube region by burning, in combustion process, fire grate
Temperature can be taken away with the cooling water in steady flame tube, flame temperature is reduced, effectively reduces the generation of nitrogen oxides.
Preferably, in combustor, the communicating pipe is equipped with igniter, flame-observing hole, flame detector.
Preferably, in combustor, water inlet is equipped in the lower water chamber, water outlet is equipped in the upper water chamber, is used for
Current flow in and out.
Preferably, in combustor, fire grate is made of the rectangle pipe material being vertically arranged, and shape between adjacent rectangle pipe material
Into gap, which is narrow gap, for air mixture by the way that gas pressure after narrow slit reduces, in narrow slit
Exit is ignited burning, prevents tempering detonation and blocking.
Preferably, in combustor, steady flame tube is arranged vertically side by side, and steady flame tube is arranged in parallel with fire grate and steady flame tube is arranged on
The front of fire grate, the gap position between steady flame tube and rectangle pipe material align, which makes burning gases by the steady of circular tube shaped
After flame tube, negative pressure is formed at the steady flame tube back side, strile-back new unburned gas again so that Combustion Energy is carried out continuously.
Preferably, in combustor, the fire grate is provided with a row, and the steady flame tube is provided with a row, and steady flame tube and
The space of flame combustion is surrounded between communicating pipe.In the structure, on the one hand play the role of communicating pipe supporting fixed, another aspect
Play the role of preventing flame to two side faces radiant heat transfer, logical cooling water inside communicating pipe.
Compared with prior art, the utility model has the advantages that：Provide a kind of slit-aperture type flame combustion dress
Combustor in putting, the cooling water in fire grate and steady flame tube can quickly take away heat, effectively reduce flame temperature, reduce harmful
The generation of gas；Flame combustion is stablized simultaneously, phenomena such as tempering detonation, blocking will not occur, stop working.
Description of the drawings
Fig. 1 is the schematic diagram of the combustor in the utility model.
Fig. 2 is the schematic diagram one of the burner in the utility model.
Fig. 3 is the schematic diagram two of the burner in the utility model.
Fig. 4 is the partial schematic diagram of the burner in the utility model.
Fig. 5 is the partial schematic diagram one of the combustor in the utility model.
Fig. 6 is the enlarged drawing in I region in Fig. 5.
Fig. 7 is the partial schematic diagram two of the combustor in the utility model.
Fig. 8 is the schematic cross-section of the combustor in the utility model.
Fig. 9 is the enlarged drawing in II region in Fig. 8.
Figure 10 is igniter, the schematic diagram of flame-observing hole in combustor.
Figure 11 is the schematic diagram of flame detector.
Specific embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Referring to figs. 1 to Figure 11, a kind of slit-aperture type flame combustion apparatus involved in the utility model including combustor and is sent
Device of air, concrete structure therein are as follows.
The air supply plant includes air blower 1, and the air outlet of the air blower 1 is equipped with gas mixer 2, the gas
The side of mixing arrangement 2 is equipped with fuel gas inlet 3, and the outlet side of the gas mixer 2 passes through flange 16 and 13 phase of equivalent pressure cavity
Even, the outlet side of the equivalent pressure cavity 13 is connected with combustor.
The combustor includes the upper water chamber 4 of setting symmetrical above and below and lower water chamber 5, between the upper water chamber 4 and lower water chamber 5
Equipped with the fire grate 11 and steady flame tube 12 being arranged side by side vertically up and down, the both sides of fire grate 11 and steady flame tube 12 are equipped with communicating pipe 14,15,
The fire grate 11, steady flame tube 12, the inner hollow of communicating pipe 14,15 and connected with upper water chamber 4 and lower water chamber 5, for from lower and
Upper logical cooling water.
In the air supply plant of present embodiment, gas mixer 2 is cylindrical-shaped structure, and flange 16 is square flange, and
There is circular air inlet 17, the diameter of the circle air inlet 17 is identical with the diameter of gas mixer 2, makes gas in flange 16
Mixing and combustion gas conveying more stablize.The equivalent pressure cavity 13 is a progressively widened cavity, and equivalent pressure cavity 13 is by four pieces of ladders
Shape plate is formed, and the outer of upper and lower two pieces of trapezoidal plates is bonded with the face seal of upper water chamber 4 and lower water chamber 5, and two pieces of left and right is trapezoidal
The outer of plate and 11 palette of fire grate of left and right ends, the structure make gas pressure gradually be released, make air mixture
Supply is more continual and steady.
In the combustor of present embodiment, the communicating pipe 14,15 is equipped with igniter 10, flame-observing hole 9, flame detecting
Device 8 is respectively used to light a fire, observes flame and detection flame.Water inlet 6 is equipped in the lower water chamber 5, is set in the upper water chamber 4
There is water outlet 7, for flowing in and out for cooling water.
In addition, in the combustor of present embodiment, fire grate 11 is made of the rectangle pipe material being vertically arranged, and adjacent rectangle
Gap is formed between tubing, which is narrow gap, and is evenly distributed, for air mixture by the way that gas is through narrow
Pressure reduces after seam, and burning is ignited in the exit of narrow slit, prevents tempering detonation and blocking.In combustor, steady flame tube 12 is simultaneously
The vertical arrangement of row, the front that steady flame tube 12 is arranged in parallel with fire grate 11 and surely flame tube 12 is arranged on fire grate 11, steady flame tube 12 and rectangle
Gap position alignment between tubing, which makes burning gases after the steady flame tube 12 of circular tube shaped, at steady 12 back side of flame tube
Negative pressure is formed, strile-back new unburned gas again so that Combustion Energy is carried out continuously.The fire grate 11 is provided with a row, institute
It states steady flame tube 12 and is provided with a row, and the space of flame combustion is surely surrounded between flame tube 12 and communicating pipe 14,15, in the structure,
Communicating pipe 14,15 one side play the role of support it is fixed, on the other hand play prevent work of the flame to two side faces radiant heat transfer
With the logical cooling water in 14,15 inside of communicating pipe is for reducing flame temperature.
In the utility model, air blower 1 is for conveying air or oxygen, and then air and combustion gas are in gas mixer 2
In become the air mixture of ratio pre-set after fully mixed, air mixture after equivalent pressure cavity 13 by reaching
Fire grate 11 and steady flame tube burn in 12 region, and in combustion process, the cooling water in fire grate 11 and steady flame tube 12 can be taken away
Temperature reduces flame temperature, effectively reduces the generation of nitrogen oxides.During work, steady flame tube 12 is equivalent to the bluff body of gas flowing,
Make burning gases after pipe, the back side formed negative pressure, strile-back new unburned gas again so that Combustion Energy continuously into
Row.Due to the resistance of narrow slit in fire grate 11, pressure reduces after gas goes out narrow slit so that the pressure ratio equivalent pressure cavity 13 of combustion zone
It is low, it is not likely to produce tempering；Premixed combustion gas speed is fast, and in blueness, the length of flame is short, is usually no more than 150mm.
In the utility model, igniter 10 is high-voltage electronic ignition device, and flame-observing hole 9 and flame detector 8 are conventional
Structure, power structure are linked into power grid.Compared with prior art, the utility model has the advantages that：By air and
Gas premixing burns again after closing, and ensure that fuel efficiency efficiency and quality；Cooling water in fire grate and steady flame tube being capable of fast speed belt
Heat is walked, effectively reduces flame temperature, reduces the generation of pernicious gas；Simultaneously flame combustion stablize, will not occur be tempered detonation,
Phenomena such as blocking, be flame-out.
The scope of protection of the utility model includes but not limited to embodiment of above, and the scope of protection of the utility model is to weigh
Subject to sharp claim, any replacement being readily apparent that those skilled in the art that this technology is made, deformation, improvement are each fallen within
The scope of protection of the utility model.
Claims (6)
1. the combustor in slit-aperture type flame combustion apparatus, which is characterized in that the combustor includes the upper of setting symmetrical above and below
Hydroecium（4）And lower water chamber（5）, the upper water chamber（4）And lower water chamber（5）Between be equipped with the fire grate that is arranged side by side vertically up and down（11）
With steady flame tube（12）, fire grate（11）With steady flame tube（12）Both sides be equipped with communicating pipe（14,15）, the fire grate（11）, steady flame tube
（12）, communicating pipe（14,15）Inner hollow and and upper water chamber（4）And lower water chamber（5）Connection.
2. the combustor in slit-aperture type flame combustion apparatus according to claim 1, which is characterized in that in combustor, institute
State communicating pipe（14,15）It is equipped with igniter（10）, flame-observing hole（9）, flame detector（8）.
3. the combustor in slit-aperture type flame combustion apparatus according to claim 1, which is characterized in that in combustor, institute
State lower water chamber（5）In be equipped with water inlet（6）, the upper water chamber（4）In be equipped with water outlet（7）.
4. the combustor in slit-aperture type flame combustion apparatus according to claim 1, which is characterized in that in combustor, stove
Row（11）It is made of the rectangle pipe material being vertically arranged, and gap is formed between adjacent rectangle pipe material.
5. the combustor in slit-aperture type flame combustion apparatus according to claim 4, which is characterized in that in combustor, surely
Flame tube（12）Vertical arrangement side by side, steady flame tube（12）With fire grate（11）It is arranged in parallel and steady flame tube（12）Arranged on fire grate（11）Before
Side, steady flame tube（12）Gap position between rectangle pipe material aligns.
6. the combustor in slit-aperture type flame combustion apparatus according to claim 4 or 5, which is characterized in that in combustor,
The fire grate（11）It is provided with a row, the steady flame tube（12）It is provided with a row, and steady flame tube（12）And communicating pipe（14,15）It
Between surround the space of flame combustion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721340208.3U CN207394845U (en) | 2017-10-18 | 2017-10-18 | Combustor in slit-aperture type flame combustion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721340208.3U CN207394845U (en) | 2017-10-18 | 2017-10-18 | Combustor in slit-aperture type flame combustion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207394845U true CN207394845U (en) | 2018-05-22 |
Family
ID=62328573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721340208.3U Active CN207394845U (en) | 2017-10-18 | 2017-10-18 | Combustor in slit-aperture type flame combustion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207394845U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606615A (en) * | 2017-10-18 | 2018-01-19 | 力聚热力设备科技有限公司 | Combustor in slit-aperture type flame combustion apparatus |
| CN109373299A (en) * | 2018-09-06 | 2019-02-22 | 李学滨 | A kind of low nitrogen minute-pressure steam thermal energy machine |
| CN110657431A (en) * | 2019-10-15 | 2020-01-07 | 芜湖美的厨卫电器制造有限公司 | Combustor and gas heater who has it |
| CN110822426A (en) * | 2019-11-11 | 2020-02-21 | 西安交通大学 | Variation micro-channel cooling type surface flame low NOx gas device |
-
2017
- 2017-10-18 CN CN201721340208.3U patent/CN207394845U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606615A (en) * | 2017-10-18 | 2018-01-19 | 力聚热力设备科技有限公司 | Combustor in slit-aperture type flame combustion apparatus |
| CN109373299A (en) * | 2018-09-06 | 2019-02-22 | 李学滨 | A kind of low nitrogen minute-pressure steam thermal energy machine |
| CN110657431A (en) * | 2019-10-15 | 2020-01-07 | 芜湖美的厨卫电器制造有限公司 | Combustor and gas heater who has it |
| CN110822426A (en) * | 2019-11-11 | 2020-02-21 | 西安交通大学 | Variation micro-channel cooling type surface flame low NOx gas device |
| CN110822426B (en) * | 2019-11-11 | 2021-06-11 | 西安交通大学 | Variation micro-channel cooling type surface flame low NOx gas device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107588421A (en) | A kind of slit-aperture type flame combustion apparatus | |
| CN207394845U (en) | Combustor in slit-aperture type flame combustion apparatus | |
| CN107575868A (en) | Air supply plant in slit-aperture type flame combustion apparatus | |
| CN107606615A (en) | Combustor in slit-aperture type flame combustion apparatus | |
| CN107420892A (en) | A kind of outer circulation smoke backflow formula all-premixing burner | |
| CN207394839U (en) | A kind of slit-aperture type flame combustion apparatus | |
| CN103277795A (en) | Gas burner capable of adjusting gas to be self-recycling | |
| CN209180943U (en) | A kind of inside smoke flows back low NOx self preheating burner | |
| CN209541154U (en) | A kind of low temperature hot-blast stove for low calorie fuels | |
| CN207394846U (en) | Air supply plant in slit-aperture type flame combustion apparatus | |
| KR20040040577A (en) | premix type knitted metal fiber mat gas burner | |
| CN103953928B (en) | The energy-saving burner of a kind of pre-mixing gas combustion pressure combustion and steam generator | |
| CN208108090U (en) | A kind of ultralow nitrogen metal fiber surface combustor | |
| CN207394904U (en) | A kind of straight way type flame front cooling structure | |
| CN206755170U (en) | A kind of super low NO | |
| CN206669741U (en) | A kind of gas burner with explosion venting device | |
| CN209458925U (en) | Full premix combustion device and boiler is premixed entirely | |
| CN103115360B (en) | The short flame high temperature industrial combustor of combustion gas | |
| CN201819218U (en) | Horizontal internal mixing type ceramics burner used for top combustion stove | |
| CN112815308B (en) | Pure oxygen combustion device and combustion method for smelting reverberatory furnace | |
| CN201666574U (en) | Reverse flow heat-exchanging catalytic combustor without ignition device | |
| CN212390821U (en) | Burner arrangement structure of sintering ignition furnace | |
| CN207797383U (en) | Boiler plant and heating system | |
| CN109579004B (en) | Low-temperature low-NOx natural gas combustion system and combustion method | |
| CN203385195U (en) | Porous medium smoke air heating furnace capable of mixing cold air |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181011 Address after: 313200 No. 150, Sheng Ye street, Wu Kang Town, Deqing County, Huzhou, Zhejiang. Patentee after: Zhejiang Li Ju thermal energy equipment Co., Ltd. Address before: 313000 No. 150, Sheng Ye street, Wu Kang Town, Deqing County, Huzhou, Zhejiang. Patentee before: LIJU THERMAL POWER EQUIPMENT CO., LTD. |
|
| TR01 | Transfer of patent right |